20005112015994 has 64 divisors (see below), whose sum is σ = 46592289386496. Its totient is φ = 5607472912704.

The previous prime is 20005112015963. The next prime is 20005112016163. The reversal of 20005112015994 is 49951021150002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29328729 + ... + 30003075.

It is an arithmetic number, because the mean of its divisors is an integer number (728004521664).

Almost surely, 2^{20005112015994} is an apocalyptic number.

20005112015994 is an abundant number, since it is smaller than the sum of its proper divisors (26587177370502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20005112015994 is a wasteful number, since it uses less digits than its factorization.

20005112015994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687739.

The product of its (nonzero) digits is 32400, while the sum is 39.

Adding to 20005112015994 its reverse (49951021150002), we get a palindrome (69956133165996).

The spelling of 20005112015994 in words is "twenty trillion, five billion, one hundred twelve million, fifteen thousand, nine hundred ninety-four".